Cladistic
Cladistic pertains to a method of biological classification that groups organisms based on shared derived characteristics, emphasizing evolutionary relationships over mere physical similarities. This approach uses cladograms to map out ancestry and divergence, making it a cornerstone of modern phylogenetics for uncovering hidden links in the tree of life.
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Cladistic analysis unexpectedly revealed that lungfish are more closely related to tetrapods like humans than to other fish, based on shared genetic traits, which has reshaped our understanding of vertebrate evolution and even influenced medical research on lung development. This finding, supported by molecular data from the 1980s, highlights how cladistics can overturn centuries of assumptions with just a few key characteristics.
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